“Inflammation” is a commonly used term in medicine and the wellness space. It’s thrown around so much that most people, even if they’ve never read a medical textbook, have likely absorbed a definition of it from context. But therein lies the problem. The definition matters a lot. So let’s start with a definition.
What’s in a Definition?
“Inflammation is a normal part of your body’s response to injuries and invaders (like germs). It promotes healing and helps you feel better. But inflammation that happens when there’s no injury or invader can harm healthy parts of your body and cause a range of chronic diseases.”—Cleveland Clinic
Seems straightforward, right? Except, if you notice, in that definition of inflammation, no biological process is described. It sidesteps describing, with active verbs, what happens in your body when inflammation occurs. So let’s try another definition, maybe one with a few more details.
“Inflammation is a process by which your body’s white blood cells and the things they make protect you from injury or infection from outside invaders, such as bacteria and viruses.” —WebMD
This definition varies greatly from the first one. The WebMD definition attempts to describe a biological process, unlike the Cleveland Clinic's. Another important difference: one mentions that inflammation can be harmful while the other implies it is only protective. To reconcile these differences, let’s consult one more definition.
“Think of inflammation as the body’s natural response to protect itself against harm. There are two types: acute and chronic. Acute occurs when you bang your knee or cut your finger. Your immune system dispatches an army of white blood cells to surround and protect the area. In these settings, inflammation is essential. But chronic inflammation can also occur in response to other unwanted substances in the body, such as toxins from cigarette smoke or an excess of fat cells (especially fat in the belly area).” —Harvard Health Publishing, Harvard Medical School
Science communication is hard. If you’re looking for a pithy definition, these are the best you can do because inflammation is a complex biological process. But I didn't pull these definitions to critique consumer health writing. I pulled them because this is exactly what millions of people do every day when they feel unwell. After reading three of the most trusted names in science communication, especially in medicine, the average reader is left with more questions than answers: How does inflammation, especially chronic, actually work? What causes it to stop? Is it a root cause or a downstream effect? The wellness industry is betting you won't pause to ask those questions. Rather, it counts on you accepting the word 'inflammation' as a self-explanatory villain. Therein lies the problem.
Root Cause or Downstream Effect?
Inflammation seems like a simple enough concept; after all, everyone has experienced a bit of swelling after a skinned knee or a bump to the elbow. Similarly, the difference between acute and chronic inflammation seems like it should be easy to distinguish: one is “perpetual,” and the other is short-term. But why? What would cause perpetual versus short-term? According to the Mayo Clinic, that’s not straightforward:
“It’s not easy to pinpoint the causes of chronic inflammation. Some experts think that it occurs when the immune system goes awry. Sometimes, an ongoing infection or exposure to environmental triggers such as pollution can cause it. Obesity, eating a diet that isn’t healthy, smoking, sleep problems, and high stress levels likely play a part.” —Mayo Clinic
A little familiarity with inflammation, combined with the power of the internet and the confidence of wellness influencers, can lead to some questionable beliefs and products. From a wellness warrior perspective, inflammation is the culprit for anything and everything. It’s both vague enough yet jargon-y enough to make anything sound plausible if said with enough confidence. “Seed oils cause systemic inflammation!” “Sugar causes chronic inflammation!” “Ultra-processed foods cause inflammation!” It’s the perpetual scapegoat.
Selling Certainty in the Gray Space
According to the Mayo Clinic, “some experts” think that chronic inflammation might be related to the immune system malfunctioning. This means we don’t know exactly; i.e., “more research is needed.” We need to be OK with not knowing all the answers to questions. Science has given us incredible breakthroughs, but it’s not instantaneous. A little bit of knowledge often leads to a lot more questions. Not having the answers to all of those questions can be uncomfortable. That discomfort is what wellness influencers offer to remedy.
The word “inflammation” serves two masters. It describes both a localized, life-saving repair mission and a diffuse, systemic state of cellular stress. That semantic overlap is the precise loophole wellness influencers hijack. By taking a genuine biological mechanism, stripping away its complexity, and framing a downstream biomarker as the root of all human suffering, they transform a scientific gray space into a high-margin checkout cart.
Wellness influencers aren't succeeding because they have better science. They are succeeding because "inflammation" is a semantic trap that lets them sell absolute certainty inside a genuine scientific gray zone. By speaking with certainty, they project authority on a topic that is complex, difficult to communicate, and still has a lot of room to grow scientifically. For example, is chronic inflammation the cause or result of a condition? One area we need to adjust is living in the gray space. Science needs time to work through its processes.
Because chronic inflammation is a nonspecific, systemic state rather than a single, distinct disease, anyone selling a single "anti-inflammatory" supplement, superfood, 7-day reset detox, and the like is offering a simple answer to a complex, multisystem biological puzzle. Ultimately, “inflammation” has become a proxy word for “anything in the body that isn't running perfectly.”
Recognizing how loosely the term is defined, especially in the wellness space, is your best shield against health exploitation. When someone offers you a simple remedy for a complex biological process that medical science is still decoding, remember: they aren't ahead of the science; they're just profiting off your discomfort with the unknown.
Katie Suleta, DHSc, MPH
Katie Suleta is a regional director of research in graduate medical education for HCA Healthcare. Her background is in public health, health informatics, and infectious diseases. She has an MPH from DePaul University, an MS in Health Informatics from Boston University, and has completed her Doctorate of Health Sciences at George Washington University.
